| 释义 |
azimuth-stabilized plan position indicator azimuth-stabilized plan position indicator[′az·ə·məth ¦sta·bə‚līzd ′plan pə′zish·ən ′in·də‚kād·ər] (engineering) A north-upward plan position indicator (PPI), a radarscope, which is stabilized by a gyrocompass so that either true or magnetic north is always at the top of the scope regardless of vehicle orientation. |